Just such a project is [Radomir Dopieralski’s] set of wearable mechatronic cat ears. A cosplay accessory that moves as you do. Very kawaii, but fun. You may have seen the commercially available ...

You can use both olive and coconut oil to clear out ear mites by heating some oil so it's warm to the touch but not hot. Drop about eight to 10 drops in your cat's ears and gently massage the oil in.